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Growth of submonolayer to monolayer silver films on the reconstructed Pt(100) surface at 300 K and evolution of the structure with increasing temperature was studied primarily by scanning tunneling microscopy (STM) and Auger electron spectroscopy (AES). At 300 K, formation of elongated 2D-adislands with a composition of Ag 80 Pt 20 was observed. This island stoichiometry...
Silver deposition on the Pt(100)-hex surface at 300 K leads to formation of a disordered Pt 20 Ag 80 alloy in the first monolayer. This is due to lifting of the Pt(100)-hex-reconstruction which expels 20% of a monolayer of excess Pt atoms out of hex-reconstruction into the growing Ag film. Such mixing in the first monolayer may be expected generally for film growth on reconstructed...
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